PLATE XXIV. 



Fig. Page. 



1. Osmeroides latifrons, sp. nov. ; skull and anterior vertebrae, upper aspect, 



two thirds nat. size. Type specimen. — Zone of Holaster subglobo- 

 sus ; Wouldham, Kent. Dibley Collection (B. M. no. P. 10465). 

 epo., epiotic ; eth., mesetlimoid ; fr., frontal; pa., parietal; socc, 

 supraoccipital ; sq., squamosal; v., vertebral centra. 120. 



2. Ditto; head, left lateral aspect, with a view of right ceratohyal (ph.) 



and branchiostegal rays (br.) (2 a), two thirds nat. size. — Ibid. 

 Dibley Collection (B. M. no. P. 9699). op., operculum; po., post- 

 orbital; pop., preoperculum ; ptf., postfrontal; qu., quadrate; sym., 

 symplectic ; other letters as in fig. 1. 120. 



3. Ditto ; right operculum (op.) and suboperculum (sop.), two thirds nat. 



size, with scales enlarged three times (3 a). — Ibid. Dibley Collec- 

 tion (B. M. no. P. 10460). /., tube of lateral line. 120. 



4. Dinelops ornatus, gen. et sp. nov. ; anterior half of fish, right lateral 



aspect, one half nat. size, with parts of maxilla, nat. size (4 a). 

 Type specimen. — Probably zone of Holaster subglobosus ; Kent. 

 Bowerbank Collection (B. M. no. 39432). ag., articulo-angular ; ao., 

 antorbital ; br., branchiostegal rays; el., clavicle; (/., dentary; do., 

 remains of dorsal fin; gu., gular plate; mx., maxilla; pel., post- 

 clavicle; pet., pectoral fin; plv., pelvic fin; scl., supraclavicle ; smx., 

 facette for supramaxilla ; other letters as in fig. 2. 122. 



5. Ditto ; imperfect head, right lateral and (5 a) upper aspects, with 



remains of left operculum (5 b), two thirds nat. size. — Zone of 

 Holaster subglobosus ; Dorking, Surrey. Egerton Collection (B. M. 

 no. P. 1812). spa., supraorbital; other letters as in figs. 2, 4. 122. 



6. Ditto (?) ; portion of left dentary, outer aspect, nat. size, with four 



teeth enlarged six times (6 a). — Chalk ; Kent. Mrs. Smith's 

 Collection (B. M. no. 49091). 122. 





